The processing and mining industries work with stones and hard rocks that are difficult to crush. In this case, a special crusher is required that can quickly and efficiently complete all the assigned work. But if we are talking about crushing stone at home in order to equip a private enterprise, then a device with low power will do, and if you wish, you can do it yourself.
The mini stone crusher is practical, compact in size and has convenient functional features for use in accordance with the established standards.
Historical reference
Since ancient times, crushing stones and other hard materials was done manually - first, large blocks were split with picks, then smaller ones were crushed with a hammer tool. The first attempts to mechanize the process date back to the late Middle Ages. They are piles covered with metal, suspended on cables and driven by the force of the river current.
With the advent of the era of steam engines, the first full-fledged stone crushers appeared, similar in principle to modern ones. In them, metal platforms, rolls or other working elements exerted pressure on the material until it crumbled into pieces.
Types of stone crushers
To properly establish the production process, you need to choose the right type of crusher, since there are different types with characteristic technical and functional features:
- Hammer crusher for stone . A hammer crusher is a special device that breaks stone into the desired shape and structure. The hammer blows are cyclical, so the stone breaks into the desired pieces, eliminating any inaccuracies and inconveniences. The absence of a large amount of waste is considered an important advantage.
- Cone crusher. This device allows you to easily and simply cope with the crushing of stone material, while providing the appropriate convenience. The system consists of two cones, between which there is space for moving stones for the purpose of crushing them.
- Impact crusher. The device is ideal for crushing hard and soft rocks. Crushing is carried out due to the rotor in the system, which is characterized by high power, reliability, quality and, most importantly, technical serviceability. The absence of inaccuracies reduces waste and material discards.
- Roll crusher. The device is equipped with special shafts that rotate among themselves to crush stone and hard rocks. The devices rotate towards each other, due to which crushing is carried out evenly and efficiently, eliminating any technical inaccuracies.
- Lye crusher. The design of the device contains rectangular slabs through which the stone passes to crush and obtain the desired shape and appearance. The working space is wedge-shaped for convenient movement of the stone in order to obtain the desired structure.
If you need a small stone crusher , then the hammer system is ideal, as it combines practicality and ease of use.
Power, thanks to which solid rock is processed, is also considered an important property. It provides practicality and high productivity, which will be quite enough for a small home workshop for stone processing.
Design and use of cheek cheeks
Jaw-type stone crushers are found in all crushing classes and can be used to crush any materials. Such machines operate on the principle of compression - a movable jaw presses the source material against a beveled stationary surface, forming a wedge-shaped chamber.
After crushing the primary boulders, their parts fall lower under the influence of gravity, where they are again compressed and crumble into even finer fractions.
Among jaw crushers, there are devices with simple and complex jaw movements. The former are more reliable and durable, while the latter provide a more uniform structure of the finished material.
In general, the proportion of flake particles in the product of jaw crushers is quite high, and the size of the granules can vary widely. Therefore, they are recommended only for rough crushing, when productivity and technological simplicity are more important than quality characteristics.
How does a crushed stone crusher work?
The process of crushing and production of crushed stone depends on its physical properties and the size of the original rock specified by production. The feed material is fed by a bucket loader or dump truck into the feeder receiving hopper, after which the feeder supplies the material to the next stage of the process chain. The technological chain may include crushing, sifting, washing, etc. processes. After the rock passes through the entire technological chain, cube-shaped crushed stone is obtained. In the production of crushed stone, jaw and cone crushers are used, as well as crushing and screening complexes.
Jaw crushers for crushed stone and stone
Jaw crushers are used for primary crushing of crushed stone and stone in order to reduce the fractional size of the rock from which the crushed stone is extracted. A stone crusher from is the optimal solution for your production.
Jaw crusher SDS - 2.5/4 Jaw crusher SDS - 4/6
Cone crushers for crushed stone
Cone crushers are usually used for secondary crushing of material and producing cube-shaped crushed stone. In the production of crushed stone, the following brands of cone crushers are used: KSD 600, KSD 900, KSD 1200, etc.
Crushing and screening complexes for crushed stone
To process ore into crushed stone, it is necessary to use a complex of crushing and screening equipment or a production line. All technological lines are produced individually for each customer. As a possible option for a crushing and screening plant for crushed stone, you can familiarize yourself with the DSU-150 complex.
Features of cone crushers
The main working body of cone crushers is a cone pestle rotating inside a metal cap. The axis of rotation of the cone does not coincide with its geometric axis, due to which a beating effect occurs - the stones poured into the cap are pressed by the side surfaces of the pestle to its sides, abraded and crushed against them.
The grinding process occurs in several stages, because, as in a jaw crusher, small particles do not immediately fall down, but slowly move along the working surfaces, being crushed more and more.
Cone crushers provide better and more uniform grinding of materials than jaw crushers, but the difference in the sizes of the initial and final fractions is not so great.
In addition, such devices wear out faster, because the eccentric design of the working body causes additional loads on the bearings of its axis, and the contact surfaces are subject to axial scratch damage.
The crushing plant includes crushing and screening shops. The main technological operations in these workshops are performed by crushing and screening machines.
Stone material is processed into crushed stone in stone crushing machines. Jaw, cone, roller and hammer stone crushing machines are used in road construction. Ball mills are used to prepare mineral powder (lime flour).
Rice. 0. Drilling tool of a percussion-rope drilling machine: a - bit; b - shock rod; c - rope lock; g - bailer: 1 - cylinder; 2 - spherical valve
Jaw crushers are currently the most common rock crushing machines. They are simple in design, reliable in operation and have high productivity, the ability to grind very hard materials, low cost of grinding, and good quality of the resulting crushed stone.
In jaw stone crushers, the stone is crushed between fixed and movable jaws (cheeks), which have a corrugated surface with relatively sharp or semicircular edges, according to the principle of crushing and splitting, sometimes combined with abrasion, with periodic pressing of the movable jaw on the stone. The stone entering the crusher feed hole is crushed gradually. The pieces of stone crushed in the upper part fall below, undergoing further crushing to a value specified by the width of the exit slot. Jaw crushers are mainly intended for coarse and medium crushing.
Crushed stone for road work is divided into the following grades according to size: large - 75-50 mm in size, normal - 50-35 mm in size, small - 35-25 mm in size, wedge - 25-15 mm in size, stone fines - 15-- in size. 5 mm and seedings - less than 5 mm.
Jaw stone crushers (Fig. 1) are classified: 1) according to the nature of the movement of the movable jaw - with simple and complex swing, combined; 2) according to the kinematic scheme of transmitting the movement of the movable jaw - to double-lever, single-lever and cam (roller); 3) by design - for single- and double-acting machines.
The main parts of each jaw crusher are: a frame, a main eccentric shaft, a main connecting rod (in crushers of the connecting rod-lever type), a movable jaw 4G spacer plates (one or two), a pull-out mechanism, a mechanism that regulates the size of crushed stone, pulleys and flywheels.
Jaw crusher with simple swing The jaws (Fig. 2) have a box-shaped frame with reinforcing ribs and holes for foundation bolts. The eccentric shaft 6 rests on the longitudinal walls of the frame and rotates in two bearings. A connecting rod is loosely mounted on the middle part of the eccentric shaft, and flywheels are mounted at the ends. At the bottom of the connecting rod there are two slots into which two spacer plates are inserted.
When the eccentric shaft rotates, the connecting rod makes oscillatory movements up and down and, through spacer plates, transmits the swing of the movable jaw, which sits freely on the axis. A grooved crushing plate is installed on this jaw. The second crushing plate is installed in the crusher frame. To soften impacts and distribute stress more evenly, crushing plates are fixed on lead or asbestos pads.
The exit slot is adjusted using a special mechanism. After pressing the stone, the jaw returns under the influence of its own weight and the pulling rod with a spring to its original position. To protect the crusher from destruction when objects that cannot be crushed get into it, there is a spacer rear plate, which breaks when the crusher is overloaded above normal, or a safety mechanism in the lower part of the connecting rod. The productivity of crushers with simple jaw swing ranges from 3 to 250 balls/hour or more.
Rice. 81. Schemes of jaw stone crushers: a - double-lever with simple swing; b - single-lever roller (cam) with simple swing; c - single-lever with complex swing; g - cheek-roller; d - single-lever triple action with simple swing; 1 - bed; 2 - main eccentric shaft; 3 - main connecting rod; 4 - movable jaw
A stone crusher with a complex jaw swing (Fig. 83) consists of a steel frame on which an eccentric shaft is mounted on two bearings. At the ends of the shaft there is a drive pulley and a flywheel, and on the eccentric part there is a jaw 6, equipped with a replaceable crushing plate; there is a similar plate on the front wall of the frame. The side walls of the frame are protected by wedges that secure the fixed plate.
When the shaft rotates, the movable jaw makes an ellipsoidal movement, periodically crushing the stone between the movable and stationary plates.
Rice. 2. Jaw stone crusher with simple swinging movable jaw
The degree of crushing coarseness is determined by the width of the exit slot, which is changed using an adjustment mechanism having a set of plates 10 and 20 mm thick, placed between the spacer plate and the crusher frame.
In some crushers, the size of the gap is adjusted by two mating wedges. The crusher is driven by an electric motor via a V-belt or belt drive. For normal operation, all rubbing parts must be regularly lubricated with liquid oils and greases.
Cone stone crushers are used for primary and secondary crushing of rocks of any hardness. In cone crushers, stone material is crushed by crushing between a stationary outer and circumferentially moving inner crushing cones.
Cone stone crushers can be classified as follows: 1) crushers with a moving vertical shaft (Fig. 4), the geometric axis of which describes the conical surface; 2) crushers with a fixed vertical shaft; 3) mushroom-shaped crushers with a cantilever shaft (Fig. 5).
Rice. 4. Cone crusher with a movable vertical shaft: 1 - crushing cone; 2 - main shaft; 3 — eccentric glass; 4—cap; 5—bevel gear; 6 - pulley; 7—fixed cone, lined with crushing plates: 8—receiving neck; 9— chute for exiting crushed stone; B, C, H - upper, middle and lower parts of the crusher body
The most common are crushers of the first and third types. Crushers of the third type are mainly intended for crushing stones of varying strengths and provide an increased degree of crushing due to the large number of swings of the crushing cone, which is made more flat. These crushers are mainly used for secondary crushing. Cone crushers are manufactured with a capacity from 45 to 800 t/hour or more.
The main part of the first type of cone stone crusher is the main vertical shaft, on which a crushing movable ribbed or smooth cone is mounted. The shaft has a fixed suspension point in the center of the traverse. The crushing cone body has a lining (lining) made of wear-resistant (manganese) steel.
The crushing cavity, formed by the movable and fixed cones, is lined with armor made of wear-resistant manganese steel.
The swing to the crushing cone is transmitted from the eccentric glass, rotating in the boring of the lower part of the frame. The lower end of the crushing cone shaft enters the inclined bore of the glass, eccentric relative to the axis of the crusher.
Rice. 5. Mushroom-shaped crusher with a cantilever shaft: 1 - thrust bearing; 2 — eccentric glass; 3— oil drain hole; 4 - drive bevel gear; 5 - counterweight; 6,7 - partitions that prevent dust from entering the oil cavity; 8 — armor plates of the movable cone; 9 — springs of the safety device; 10 - zinc, filling the gap between the armor plates; 11 — armor plates of a fixed cone; 12 — ring of the safety device; 13 — ring for adjusting the size of the exit slot; 14 - plate for uniform distribution of stone throughout the loading slot; 15 — bronze thrust bearing; 16 — movable crushing cone; 17 — crusher body; 18 — driven bevel gear; 19 — channel for oil
When the eccentric cup rotates, the geometric axis of the main shaft of the crushing cone describes a conical surface with a fixed point at the top and a deviation at the bottom from the vertical axis; In this case, the loaded stone material is crushed. The rotation of the eccentric cup is produced by a bevel gear through a pulley and a belt drive from an electric motor. The crushed material is discharged from the crusher via an inclined chute.
In the third type of cone crusher, designed for medium crushing, the crushing cone is mounted on a cantilever shaft. Due to its short length, this shaft does not have an upper suspension point, as in the first type of crusher, but is reinforced cantilevered by its lower part in an eccentric cup. Thanks to this, there is no need for a heavy cross with legs and a complex suspension design. In addition, this achieves very convenient and free loading of stone along the entire free periphery on the top of the crusher.
To support the weight of the shaft and crushing cone, a large spherical surface located directly under the crushing cone is used. The weight of the eccentric cup is perceived by the thrust bearing.
Crushers of the second type are not used in construction.
Cone crushers have the following design and operational advantages compared to jaw crushers: 1) the productivity of cone crushers is 2-3 times greater than the productivity of jaw crushers; 2) with equal productivity, cone crushers consume energy per 1 g of processed material 1.5-2 times less than jaw crushers; 3) cone crushers crush the material (cube-shaped) more evenly without generating dust; 4) cone crushers operate more smoothly and quietly; 5) the degree of grinding of the crushed material in cone crushers is higher than in jaw crushers.
The disadvantages of cone crushers include their significant weight, large overall dimensions (especially height), and design complexity.
In the latest designs of cone crushers (Fig. 6), a hydraulic system is used to regulate the size of crushed stone exiting the crusher, as well as to protect the crusher from damage when a crushed piece enters. Pressurized oil is forced under or out from the bottom of the main shaft. In this case, the shaft with the crushing cone can rise or fall.
Roller stone crushers are used mainly for fine (secondary) crushing. When using these crushers, the best results are achieved with a reduction ratio of approximately 4:1 for strong rocks and from 5:1 to 10:1 for weak and brittle rocks. Roller crushers operate on the principle of continuously pressing on the stone and crushing it between
Rice. 6. Cone crusher with a hydraulic mechanism for regulating the outlet slot: 1 - feeder plate; 2 - fixed cone; 3 — armor plate; 4 — crushing cone; 5 - main shaft; 6—eccentric; 7—bevel gear; 8 — hydraulic cylinder cover
two rollers rotating towards each other at a constant speed.
Roller stone crushers (Fig. 87) are divided into the following types: 1) according to design - into machines with fixed bearings on one roll and movable bearings on the other, and machines with movable bearings on both rolls; 2) along the surface of the roll - on machines with smooth and machines with grooved rolls.
Rice. 7. Roll crusher
The roller crusher has a rigid frame on which two working shafts with crushing rollers mounted on them and a drive shaft are mounted in bearings.
At one end of the drive shaft there is a drive pulley, and at the other there is a gear that meshes with the gear of the first drive shaft. Rotation is transmitted to the second working shaft from the first shaft through a gear with an elongated tooth, which is in mesh with a similar gear mounted on the end of the second working shaft. The bearings of the second working shaft can be moved on a slide, thereby changing the size of the gap between the crushing rollers. The position of the bearings of the second shaft is fixed on one side by stops, and on the other by springs. Springs protect the crusher from breakage and make it possible to widen the gaps between the rolls when foreign, non-crushable objects pass between them.
The stone crusher is equipped with smooth, corrugated or one smooth and one corrugated rollers. Corrugated rollers provide a higher degree of crushing. Both rollers rotate towards EACH OTHER and crush the incoming product, the dimensions of which do not correspond to the width of the crusher exit slot. The size of the incoming pieces of stone that can be captured by the rollers depends on the diameter of the latter and the width of the output slot. Uniformity and continuity in the feeding of roller crushers is ensured by the flow of material from a belt conveyor or from a feeder. The productivity of roller crushers is from 5 to 125 m/1 hour. The size of the crushed product is 0-300 mm.
Hammer stone crushers are used for preparing small grades of crushed stone or for preliminary crushing of limestone stone, from which mineral powder is subsequently prepared in ball mills.
Rice. 8. Hammer crusher: 1 - housing; 2— rotor; 3 - hammer; 4— shaft; 5 — loading funnel; 6 - grill
These crushers are widely used for crushing slag and are known as slag crushers. Hammer crushers are not recommended for crushing viscous or sticky materials, or materials with a high moisture content, as such materials will stick to the hammers. Hammer crushers operate on the principle of frequent blows applied to pieces of stone loaded into the crusher by rapidly rotating freely suspended or rigidly mounted hammers.
Hammer stone crushers come in single- and multi-rotor types.
Single-rotor hammer crusher (Fig. consists of a detachable, bolted cast-iron body, inside of which a rotor rotates on a horizontal axis, equipped with hinged hammers. A discharge (usually grate) grate is installed under the rotor. The body, the upper part of which is equipped with a loading funnel, inside lined with replaceable armor plates.
The crusher rotor consists of individual plates or disks mounted on shaft 4 and separated from each other by spacer rings. Axles are passed through the holes of the disks, on which hammers made of manganese steel are pivotally mounted. The hammers in some crushers are symmetrical and can be turned over as they wear.
The unloading grate 6 installed inside the housing under the rotor is formed by grates, the gap between which is adjusted using spacers.
The horizontal shaft of the crusher rotates in roller bearings mounted on the side walls of the housing. The crusher is driven by a separate electric motor. To operate, it is installed on the foundation.
These crushers crush stones in the following way. The material entering the crusher through the feed hopper is broken up by the hammer blows of the rapidly rotating rotor. As the material is crushed, it hits the grate and falls through its holes as a finished product. The crusher must be loaded evenly and after the main shaft rotates at a normal speed (indicated in the machine’s passport).
Double-rotor crushers can have rotors placed side by side or one on top of the other; hammers are attached hingedly or rigidly. Crushers with rigidly mounted hammers are often called impact crushers. Typically, double-rotor crushers are designed for higher productivity. During construction work, such machines are used to crush hard limestone (up to 2000 kg/cm2). Pieces up to 650 mm in size are loaded and crushed into commercial crushed stone with a crushing degree of up to 25. Productivity (for the SM-429 machine) 100-200 tons. Engine power 2x55 kW. The main components of such a crusher are: two rotors placed side by side, two upper and two lower grates, a body, a frame, an inspection door, loading and unloading funnels.
Ball mills are used for very fine (fine) grinding of stone materials—down to the size of sand and dust fractions (for example, mineral powder).
Mills operate on the principle of impact by freely falling balls and partly by abrasion. The blows are applied periodically, but the abrasion occurs continuously.
Based on the type of cylindrical drum, one-, two- and multi-chamber mills are distinguished.
According to the method of unloading the material, mills are divided into the following types: a) mills with a free exit of the product through the central pipe in the form of a hollow neck under the pressure of the material entering the mill; they are called central discharge mills; b) mills with product exit through a transverse diaphragm inside the drum (with peripheral or end discharge; c) mills with product exit through an external cylindrical sieve (sieve mills).
Depending on the nature of their operation, ball mills can be designed for dry or wet grinding.
Rice. 9. Single chamber ball mill
Horizontally mounted mills, in which the product exits through a central nozzle, are usually used for wet grinding, since their productivity is very low during dry grinding.
The ball mill can also be operated by passing hot air through it to dry the material to be crushed.
A single-chamber ball mill (Fig. 9) is mainly used for wet grinding of materials of varying hardness.
The mill drum is a welded cylinder made of sheet steel, closed at the ends with steel bottoms. The bottoms are cast integrally with hollow necks, on which the drum rotates in support bearings.
The internal surfaces of the drum and the end bottoms are lined with armor plates made of manganese steel. Funnels are installed in the necks of both bottoms, one of which serves to load materials, and the other to exit the material from the mill.
The material is loaded into the mill using a special combined type feeder. The mill is driven by a motor through a gear transmission. For this purpose, a drive gear is mounted on one of the ends of the drum. The mill can rotate in any direction. To change the direction of rotation, you only need to rearrange the feeder.
Double-chamber ball mills are used for both dry and wet grinding of materials of various hardness with the size of the loaded pieces not exceeding 65 mm. The mill drum is a welded cylinder made of sheet steel, closed at the ends with cast steel bottoms carrying hollow necks. On hollow necks, the drum rotates in support bearings. There are two diaphragms installed inside the drum: the first divides the mill into two chambers equal to 1/3 and 2/3 of the drum volume; the second diaphragm is located at the end of the drum, near the discharge neck.
Rice. 10. Two-chamber ball mill: 1 - hopper; 2 — drum-type feeder; 3— main bearing; 4— shooting hatch; 5 — drum casing; 6 — ring gear; 7 — hollow neck (trunnion); 8 — end bottom; 9 and 10 - steel balls; 11—diaphragm
Grinding bodies of various sizes are loaded into both chambers (in one chamber - heavy steel balls, in the other - short steel cylinders or balls of small diameter).
The material to be crushed is fed by the feeder into the loading neck of the front hollow neck, from where it enters the internal cavity of the first chamber and is crushed by heavy steel balls.
When the drum rotates, the balls rise, pressing against the inner surface of the lining under the action of centrifugal force. Having come off at a certain height from the lining under the weight of their own weight, the balls fall down, crushing pieces of material.
The material is crushed not only from the impacts of the balls, but partly also due to abrasion, since the entire mass loading the drum and consisting of balls and material is constantly in continuous motion.
The material crushed in the first chamber moves to the middle partition and through the holes of the latter passes into the second chamber, where it is further crushed; after grinding, the material moves to the discharge neck and leaves the mill in the form of a finished product.
To prevent single large pieces of stone from coming out along with the finished product, a drum screen (sieve) is attached to the discharge neck of the mill. The screen directs the stones into a separate hopper, from where they can be returned to the mill for grinding (closed loop).
During wet grinding, water is supplied to the mill along with the material in an amount of at least 30-40% of the weight of the material, depending on the technology for grinding a particular product.
The material, liquefied by water, easily moves along the mill and flows out in the form of a liquid mass (pulp) through the hollow neck of the mill.
Vibrating mills are used for ultra-fine grinding. The vibrating mill consists of a housing, a vibrator, a support frame and an electric motor. The mill body with angles welded to it rests on springs. The inside of the mill is filled with small steel balls. The mill body continuously receives crushed material. The vibrator shaft rotates inside the housing. When the vibrator shaft rotates, it seems to rock the mill body, imparting oscillatory circular movements to it. When the mill operates, the balls capture the crushed material from the bottom, lift it up and crush it, abrade it, hitting each other. The material crushed in the mill comes out of it continuously. New crushing and grinding methods are: using the electro-hydraulic JI effect. A. Yutkin and ultrasonic vibrations with a frequency of 10-100 kHz or more. The Yutkin effect is based on the conversion of electrical energy directly into mechanical energy when passing a high-voltage discharge through water.
Screens and sorting. One of the main operations performed when processing stone and gravel material is sorting, which is performed with the aim of preliminary separating fines from the stone entering the crusher, dividing the crushed stone and gravel mixture into separate grades by size (fractions).
It is extremely irrational to load all the stone mined in a quarry into a crusher. Therefore, it is recommended to first separate (sort) the largest and heaviest pieces into coarser, but stronger, simpler, cheaper devices, and then send them for crushing.
Sorting, carried out in sieves, sieves and grates by passing a mixture of grains of material through a certain size of hole in them, is called screening, and machines and devices designed for this are called screens.
Sieves are made of woven wire mesh, sieves are made of steel sheets with stamped or drilled holes, and grates are made of round rods or grates of one profile or another, located in parallel.
Screens are classified according to the following criteria: 1) according to the type of sorting device - drum (Fig. 11), grate (Fig. 12, (3), flat (Fig. 12, d); 2) according to the nature of the movement of the working part - stationary (grid-iron, lattice), rotating (drum), flat swinging, gyratory or eccentric (Fig. 12.6), flat vibration (inertial) (Fig. 12, c), impact and electromagnetic.
Rice. 11. Drum screen: 1 - frame; 2 - sieve; 3 - drive
In road construction work, flat eccentric and vibrating (inertial) screens are most widely used:
Fixed grate screens have a working surface consisting of parallel steel trapezoidal grate bars located at the same distance from one another. The grate bars form slits that are widened downwards. The grate bars are fastened together with transverse combs or steel bolts with gaskets. The practical application of grate screens is limited to large screening with a minimum gap between the grate bars of 50 mm. Using grate screens, it is possible to achieve only a rough separation of materials into upper and lower grades.
The upper grade includes material that has not passed through the screen, and the lower grade includes material that has passed through the screen. Screening would be perfect if all particles whose size is less than the size of the cells passed through the sieve (or sieve) and fell into the lower class. In fact, some of the grains whose size is smaller than the size of the cells do not have time to pass through the holes during their movement through the sieve and remain in the upper class.
Expressed as a percentage, the ratio of the weight of grains of the lower class that passed through the sieve to the weight of all grains of the same class contained in the food product is called the screening efficiency or quality coefficient. Fixed grizzly screens are not suitable for precise screening and therefore are used mainly for auxiliary screening before coarse crushing, in which special screening accuracy is not required. Grizzly screens are usually installed at an angle.
Fixed grate screens differ from stationary grate screens in that they have an inclined working surface made of stamped sheets 0.3-10 mm thick. The holes in stamped sieves are most often made round. Such screens are used mainly in construction and road work for screening gravel.
On lattice stationary screens, it is possible to separate material more accurately than on grate screens, since their openings limit the size of the pieces in two directions, and not in one, as in grate screens.
The disadvantage of stamped sieves is their relatively large weight and small light surface.
The sieves are made of wear-resistant steel wire.
For screening wet materials, slit-shaped wire sieves are used, in which the ratio of the length of the slit to its width is equal to (20-s-30): 1. Sieves with rectangular holes with an aspect ratio of (2-5-4): 1 are used for screening dry materials. These sieves provide higher productivity compared to sieves with square holes.
Drum rotary screens are used for dry and wet screening or used as washing units. To ensure the movement of the material, the drum is tilted. Sorting of material into several grades is achieved by dividing the drum into several sections with gradually increasing holes or by using 2-3 drums inserted one into the other. In this case, the holes on the working surfaces decrease in direction from internal to external.
Drum screens are made with a central shaft (less commonly) or on rollers.
The disadvantage of drum screens is their lower productivity compared to flat screens. In a drum screen, only the lower part of the screening surface works, which is approximately Ve of the entire surface. Drum screens are bulky, metal intensive and consume more energy; therefore, they are being replaced by more advanced eccentric and vibration ones.
Rice. 12. Schemes of flat screens:
The advantage of drum screens is their quiet operation and the absence of foundation vibrations. Drum screens are often used for wash screening.
Flat oscillating screens provide better screening quality than drum screens. They use the working surface of the sieve or sieve more fully and have a high efficiency coefficient. Flat screens weigh less and consume less energy than drum screens. High quality screening on flat screens is ensured by the shaking effect on the material. Flat screens are widely used in sorting building materials; they are used for both wet and dry screening, and in the first case they require a significant amount of water. Oscillating screens are unsuitable for processing clay materials due to the rapid formation of spherical clay lumps on the sieve and clogging the sieve holes with them.
Rice. 13. Eccentric screen: 1 - electric motor; 2 - fixed frame; 3— movable frame
Vibrating screens are devices in which material is sorted on a vibrating flat horizontal or inclined screen. Depending on the type of mechanism that drives the sieve, all vibrating screens are divided into inertial, unbalanced pulley, impact cam and electro-vibrating.
Vibration vibrations are transmitted directly by a special mechanism (vibrator) to a sieve stretched over a stationary screen frame, or to the frame on which the sieve is mounted.
Rice. 14. Inertial screen: a - neutral position of the screen; b—right extreme position of the rumble; c — left extreme position of the rumble; 1 — leaf springs; 2 — loading funnel; 3 — vibrator cheeks; 4 - vibrator; 5 - unbalanced masses
The number of vibrations per minute, as well as their direction, varies depending on the purpose of the screen and the type of vibration mechanism.
The number of vibrations per minute in some cases reaches <3600 (usually about 900-1500). The amplitude varies from 0.5 to 12 mm.
An eccentric screen (Fig. 93) consists of a fixed frame, a movable frame with sieves, an eccentric mechanism and a drive.
The fixed frame is mounted on supports or suspended. The movable frame is a box open at the top, equipped with two side walls, fastened together by cross braces and a rear end wall.
Between the side walls of the frame there are sieves attached to the longitudinal sides of the box using angles and bolts.
The moving frame of the screen is suspended on eccentrically machined shaft journals using two brackets and two radial roller bearings.
The ends of the frame rest on spring shock absorbers (in new screens, rubber ones). The source of frame vibrations is an eccentric vibrator, consisting of an eccentric shaft, main roller bearings, counterweight flywheels and roller bearings of the movable frame.
When the eccentric shaft rotates, the screen frame is shaken vigorously.
The vibrations of the moving frame are balanced by two counterweights, as a result of which the loads are not transferred to the main bearings and the stationary frame of the screen.
Using an inertial screen (Fig. 14), you can simultaneously wash materials contaminated with dust, clay and other impurities while sifting.
A horizontal inertial screen consists of a fixed frame, on which, with the help of three pairs of springs, a vibrating body with meshes stretched on it in two tiers rests. The springs are inclined to the horizontal at an angle of 55°.
A vibrator consisting of two shafts with unbalanced masses rotating towards each other and located in a plane inclined to the horizon at an angle of 55° is bolted to the screen body. One shaft is the driven shaft, the other is the driving shaft. The latter has a drive pulley mounted on it, rotated by an individual engine using a V-belt drive. When the shafts rotate, unbalanced masses create inertial forces. During directed vibrations of the screen body, particles of material are thrown up on the sieve and move along it in jumps, periodically coming into contact with the screening surface and being sifted as they fall.
Rotary
The operating principle of an impact crusher is based on the rotation of a rotor equipped with steel blades (beaters) inside a tapering annular chamber. The blades, colliding with stones, either immediately crush them or throw them onto the impact surface.
Each particle hits different surfaces multiple times at different accelerations, resulting in uniform, although not too rapid, fragmentation.
The main area of application of rotary crushers is the procurement of construction raw materials of low hardness. With their help, you can obtain a high-quality and uniform product. The main disadvantage of this design is the low durability of the beaters.
Roller
Roller stone crushers combine pressure loads with cutting loads. The multidirectional movement of their drums, equipped with sharp teeth, pulls the primary material inside, where it is subjected to strong compression and axial abrasion, as well as multiple impacts on the cutting edges.
Due to their low cost, open design, ease of maintenance and repair, roller crushers are very popular in small industries. They are quite effective and provide high product homogeneity, but are prone to rapid wear.
In some cases, the area of the teeth is increased, and their edges are not sharpened. This reduces the productivity of the crusher, but increases its resource and makes it possible to work with more durable rocks and substances.
Hammer
The action of hammer stone crushers is vaguely similar to the action of rotary crushers - there is also a rapidly rotating drum located inside a closed housing and serves as the basis for placing the working parts.
But in hammer-type crushers, their role is played not by beaters, but by heavy steel plates arranged asymmetrically in several rows. They alternately strike the primary particles, breaking them into smaller ones.
Hammer-type stone crushers are quite rare, since, despite their high productivity, they are not able to work even with medium-hard rocks due to rapid wear. Their use is justified only when it is necessary to quickly crumble soft material into homogeneous granules.
Choosing a device for home and professional use
When choosing a specific stone crusher model, it is important to know not only the required productivity and the nuances of the granulometry of the equipment, but also to navigate the physical properties of the materials with which you will have to work.
First of all, we are talking about hardness and abrasiveness indicators. Knowing these properties, as well as the budget for purchasing equipment, you can decide on the required type of working parts.
Then they start choosing the chassis. If the stone crusher will be installed directly at the site of production of finished goods or semi-finished products from lump raw materials, it is better to give preference to stationary models; in all other cases, it is worth purchasing towed crushers. The use of self-propelled devices is justified only in the mining industry, when the hourly productivity of work is estimated at tens of tons.
Where to buy a crusher for crushed stone and gravel?
In our company you can buy crushers for crushed stone and stone at a low price. All crushers are designed individually in accordance with the customer’s wishes, and purchasing a crushed stone crusher from will be a reliable solution for your production.
Impact crushers for crushed stone
Impact crusher SMD-5
(follow the link for detailed technical and design documentation).
from 882,000 rub.
A machine for crushing metallurgical slag, limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions, the tensile strength of which does not exceed 600 kgf/cm2, and the size of the pieces is 180 mm.
Technical characteristics of the SMD-5 impact crusher
Technical characteristics of the impact crusher SMD-5*** | ||
| Options | Values* | |
| Estimated productivity, t/h | 8* | |
| Incoming fraction dн, mm | 180* | |
| Overall dimensions, mm: | 1800x734x1520 | |
| Weight, kg | 1040 | |
| Installed power, kW | 11 | |
| Linear speed of the rotor beat, m/s | 26 | |
| Length and diameter of the rotor with installed blow bars, mm | 200/500 | |
| Loading window dimensions, mm | 430x220 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher SMD-10
(follow the link for detailed technical and design documentation).
from 1,176,000 rub.
Machine for crushing metallurgical slag, limestone, dolomite, marl, marble, gypsum, low abrasive ores and other similar materials into medium and small fractions, the tensile strength of which does not exceed 600 kgf/cm2, and the size of the pieces is 350 mm
Technical characteristics of the SMD-10 impact crusher
Technical characteristics of the impact crusher SMD-10*** | ||
| Options | Values* | |
| Estimated productivity, t/h | 12* | |
| Incoming fraction dн, mm | 380* | |
| Overall dimensions, mm: | 1800?933?1520 | |
| Weight, kg | 1330 | |
| Installed power, kW | 11 | |
| Linear speed of the rotor beat, m/s | 26 | |
| Length and diameter of the rotor with installed blow bars, mm | 400/500 | |
| Loading window dimensions, mm | 430x420 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher SMD-75A
(follow the link for detailed technical and design documentation).
from 5,400,000 rub.
A machine for crushing metallurgical slag, limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions, the tensile strength of which does not exceed 600 kgf/cm2, and the size of the pieces is 300 mm.
Technical characteristics of the SMD-75A impact crusher
Technical characteristics of the impact crusher SMD-75A*** | ||
| Options | Values* | |
| Design capacity, m3/h | 135* | |
| Incoming fraction dн, mm | 300* | |
| Overall dimensions, mm: | 2700x2800x2100 | |
| Weight, kg | 10000 | |
| Installed power, kW | 132 | |
| Width of unloading window, mm | 16x200 | |
| Loading window width, mm | 1000x500 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher SMD-85A
(follow the link for detailed technical and design documentation).
from 3,600,000 rub.
A machine for crushing metallurgical slag, limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions.
Photo of crusher SMD-85A
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Technical characteristics of the SMD-85A impact crusher
Technical characteristics of the impact crusher SMD-85A*** | ||
| Options | Values* | |
| Design capacity, m3/h | 60* | |
| Incoming fraction dн, mm | 400* | |
| Overall dimensions, mm: | 2500x1700x2150 | |
| Weight, kg | 6000 | |
| Installed power, kW | 45 | |
| Width of unloading window, mm | 16 x 160 | |
| Loading window width, mm | 630 x 550 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher SMD-86A
(follow the link for detailed technical and design documentation).
from 7,200,000 rub.
A machine for crushing metallurgical slag, limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions.
Technical characteristics of the SMD-86A impact crusher
Technical characteristics of the impact crusher SMD-86A*** | ||
| Options | Values* | |
| Design capacity, m3/h | 135* | |
| Incoming fraction dн, mm | 600* | |
| Overall dimensions, mm: | 3200x2350x2800 | |
| Weight, kg | 15000 | |
| Installed power, kW | 110 | |
| Width of unloading window, mm | 25-250 | |
| Loading window width, mm | 1000-875 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher DR-50
from 4,920,000 rub.
DR 50-rotor crusher of a new type produced by Tula Machines. The crusher differs from older models by introducing new design solutions and higher productivity. The machine is designed for crushing limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions with an incoming piece of 280 mm. It is also ideal for producing cube-shaped crushed stone of commercial fractions
Technical characteristics of the DR-50 impact crusher
Technical characteristics of the DR-50*** impact crusher | ||
| Options | Values* | |
| Rotor diameter, mm | 840 | |
| Rotor length, mm | 800 | |
| Maximum size of loaded material, mm | 280 | |
| Discharge slot width, mm | 10-50 | |
| Productivity max, m3/hour | 66 | |
| Drive power, kW | 75 | |
| Weight, kg | 8105 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher DR-100
from 7,800,000 rub.
DR 100-rotor crusher of a new type produced by Tula Machines. The crusher differs from older models by introducing new design solutions and higher productivity. The machine is designed for crushing limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions with an incoming piece of 350mm. It is also ideal for producing cube-shaped crushed stone of commercial fractions.
Technical characteristics of the DR-100 impact crusher
Technical characteristics of the DR-100*** impact crusher | ||
| Options | Values* | |
| Rotor diameter, mm | 1020 | |
| Rotor length, mm | 1000 | |
| Maximum size of loaded material, mm | 350 | |
| Discharge slot width, mm | 10-50 | |
| Productivity max, m3/hour | 70 | |
| Drive power, kW | 110 | |
| Weight, kg | 12721 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher DR-150
from 9,720,000 rub.
DR 150-rotor crusher of a new type produced by Tula Machines. The crusher differs from older models by introducing new design solutions and higher productivity. The machine is designed for crushing limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions with an incoming piece of 350mm. It is also ideal for producing cube-shaped crushed stone of commercial fractions.
Technical characteristics of the DR-150 impact crusher
Technical characteristics of the DR-150*** impact crusher | ||
| Options | Values* | |
| Rotor diameter, mm | 1240 | |
| Rotor length, mm | 1000 | |
| Maximum size of loaded material, mm | 350 | |
| Discharge slot width, mm | 10-80 | |
| Productivity, max, m3/hour | 100 | |
| Drive power, kW | 160 | |
| Weight, kg | 16109 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher DR-250
from 12,600,000 rub.
DR 150-rotor crusher of a new type produced by Tula Machines. The crusher differs from older models by introducing new design solutions and higher productivity. The machine is designed for crushing limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions with an incoming piece of 600 mm. It is also ideal for producing cube-shaped crushed stone of commercial fractions.
Technical characteristics of the DR-250 impact crusher
Technical characteristics of the DR-250*** impact crusher | ||
| Options | Values* | |
| Rotor diameter, mm | 1320 | |
| Rotor length, mm | 1500 | |
| Maximum size of loaded material, mm | 600 | |
| Discharge slot width, mm | 20-100 | |
| Productivity max, m3/hour | 250 | |
| Drive power, kW | 160-400 | |
| Weight, kg | 20980 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Impact crusher DR-350
from 19,500,000 rub.
DR 150-rotor crusher of a new type produced by Tula Machines. The crusher differs from older models by introducing new design solutions and higher productivity. The machine is designed for crushing limestone, dolomite, marl, marble, gypsum, low-abrasive ores and other similar materials into medium and small fractions with an incoming piece of 700 mm. It is also ideal for producing cube-shaped crushed stone of commercial fractions.
Technical characteristics of the DR-350 impact crusher
Technical characteristics of the DR-350*** impact crusher | ||
| Options | Values* | |
| Rotor diameter, mm | 1515 | |
| Rotor length, mm | 1500 | |
| Maximum size of loaded material, mm | 700 | |
| Discharge slot width, mm | 40-140 | |
| Productivity max, m3/hour | 300 | |
| power, kWt | 250-630 | |
| Weight, kg | 32015 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crushers
Jaw laboratory crusher ShchD-10
(follow the link for detailed technical and design documentation).
from 504,000 rub.
The laboratory jaw crusher ShchD-10 is designed for crushing ores, minerals, slags and other materials of varying strength. Laboratory grade crusher, which is used in various industries, including: mining, metallurgy, construction and chemical.
Photos of crusher ShchD-10
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ShchD-10 crusher design
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Technical characteristics of the ShchD-10 crusher
Technical characteristics of crusher ShchD-10*** | ||
| Options | Values* | |
| Productivity, kg/h | Up to 500** | |
| Loading window dimensions, mm | 100x200 | |
| Size of source material, mm, no more | 70 | |
| Exit slot adjustment range, mm | 3-25 | |
| Receiving container volume, l | 20 | |
| Overall dimensions (L×B×H), mm | 735x470x915 | |
| Electric motor power, kW | 2,2 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crusher SDS-1.5/2.5 (SMD 115)
(follow the link for detailed technical and design documentation).
from 1,056,000 rub.
It is used for crushing various mineral rocks. Typically used in conjunction with an apron feeder and a belt conveyor for discharging crushed material.
Technical characteristics of the jaw crusher SDS 1.5/2.5 (SMD 115)
Technical characteristics of the jaw crusher SDS 1.5/2.5 (SMD 115)*** | ||
| Options | Values* | |
| Overall dimensions (L×B×H), mm | 1272x1090x109 | |
| Power supply voltage, V/Hz | 380/50 | |
| Power consumption, kW | 5,5 | |
| Productivity, t/h | up to 5 | |
| Maximum fr. on Vkh, mm | 150 | |
| Fraction at Out, mm | 5-40 | |
| Weight, kg | 1150 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crusher SDS-2.5/4
(follow the link for detailed technical and design documentation).
from 2,100,000 rub.
This jaw crusher is excellent for crushing brick production waste, and can also be used in laboratory quarries. The advantage of this crusher is that in one crushing stage it is possible to obtain a product from a 210 mm fraction of gravel with a particle size of up to 20 mm. This gravel can be used as an additive to concrete, and can also be used for filling roads.
Photo of jaw crusher SDS-2.5/4
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Technical characteristics of jaw crusher SDS-2.5/4
Technical characteristics of jaw crusher SDS-2.5/4*** | ||
| Options | Values* | |
| Design productivity, m3/h (with the width of the unloading slot, mm) | 3,5 — 14* | |
| Incoming fraction (max), mm | 210 | |
| Loading hole size, mm | 250x400 | |
| Eccentric shaft rotation speed, rpm | 375* | |
| Overall dimensions (L×B×H), mm | 1800×1146×1614 | |
| Electric motor: | ||
| power, kWt | 18,5 | |
| Rotation speed, rpm | 1000* | |
| Voltage, V | 380 | |
| Weight, kg | 2550 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crusher SDS-2.5/9 (SMD 108A)
(follow the link for detailed technical and design documentation).
from 3,858,000 rub.
This jaw crusher is designed for crushing granites, basalts, quartzites, sandstones, limestones, and other rocks and ores. It is used for crushing large and medium-sized pieces of rock and is one of the most reliable crushers of this type.
Photo of jaw crusher SDS 2.5/9 (SMD 108A)
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Technical characteristics of jaw crusher SMD 108A
Technical characteristics of jaw crusher SMD 108A*** | ||
| Options | Values* | |
| Design capacity, m3/h | 17-35* | |
| Incoming fraction (max), mm | 210 | |
| Exit slot adjustment range, mm | 25-60 | |
| Electric motor power, kW | 45 | |
| Voltage, V | 380 | |
| Weight, kg | 5000 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crusher SDS-4/9 (SMD 109)
(follow the link for detailed technical and design documentation).
from 5,280,000 rub.
SDS 4/9 is a solid jaw crusher. It is used for crushing various mineral rocks. Typically used in conjunction with an apron feeder and a belt conveyor for discharging crushed material. This jaw crusher can be installed on a quarry site either under a canopy or in the open air.
Photo of jaw crusher SDS-4/9
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Technical characteristics of jaw crusher SDS-4/9
Technical characteristics of jaw crusher SDS-4/9*** | ||
| Options | Values* | |
| Design productivity, m3/h (with the width of the unloading slot, mm) | from 20 to 55 | |
| Incoming fraction (max), mm | 340 | |
| Loading hole size, mm | 400x900 | |
| Eccentric shaft rotation speed, rpm | 325 | |
| Overall dimensions (L×B×H), mm | 2650x3019x2022 | |
| Electric motor: | ||
| - power, kWt | 45 | |
| — rotation speed, rpm | 1000* | |
| — voltage, V | 380 | |
| Weight, kg | 10890 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Jaw crusher SDS-6/9 (SMD 110A)
(follow the link for detailed technical and design documentation).
from 8,190,000 rub.
The jaw crusher is designed for crushing granites, basalts, quartzites, sandstones, limestones, and other rocks and ores.
Technical characteristics of the jaw crusher SDS 6/9 (SMD 110A)
Technical characteristics of the jaw crusher SDS 6/9 (SMD 110A)*** | ||
| Options | Values* | |
| Design capacity, m3/h | 105* | |
| Incoming fraction (max), mm | 500 | |
| Exit slot adjustment range, mm | 75-135 | |
| Overall dimensions (L×B×H), mm | 3608x3310x2437 | |
| Electric motor power, kW | 75 | |
| Voltage, V | 380 | |
| Weight, kg | 21000 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Cone crushers
Cone crusher KD-900
from 7,200,000 rub.
The Kd-900 cone crusher is used for crushing strong and high-strength rocks and other materials at the preliminary and main stages of crushing.
Photo of crusher KD-900
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Technical characteristics of the crusher KD-900
Technical characteristics of crusher KD-900*** | ||
| Options | Values* | |
| Diameter of crushing cone, mm | 900 | |
| Maximum size of loaded material, mm | 115 | |
| Exit slot adjustment range, mm | 15-50 | |
| Productivity, m³/h | 48-86 | |
| Main drive motor power, kW | 55 | |
| Weight, kg | 9800 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86
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Cone crusher KD-1200
from 16,920,000 rub.
The KD-1200 cone crusher is suitable for crushing high-strength rocks, as well as non-metallic materials with a tensile strength of up to 300 MPa,
Photo of crusher KD-1200
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Technical characteristics of crusher KD-1200
Technical characteristics of crusher KD-1200*** | ||
| Options | Values* | |
| Diameter of crushing cone, mm | 1200 | |
| Maximum size of loaded material, mm | 115 | |
| Exit slot adjustment range, mm | 25-8 | |
| Productivity, m³/h | 50-135 | |
| Main drive motor power, kW | 75 | |
| Weight, kg | 23500 | |
* - parameters may vary depending on the physical properties of the material. ** - depends on the Customer's requirements. The size of the resulting fraction depends on the gap between the rolls. ***- all values are calculated, or taken on the basis of the materials with which the crusher was used. **** - the fraction can change towards increasing the size by spreading the rolls. find out the conditions for receiving prices and individual discounts by calling 8-800-700-46-86 [collapse]
We answer questions
How much can a stone crusher cost for a summer cottage?
The cost of crushers varies widely, depending on their type and performance. A household model of the jaw or cone type will cost $200-1500.
What is the best type of stone crusher for limestone and chalk?
Rotary and roller crushers are well suited for rough grinding of these rocks; for fine grinding (production of a powder product), milling equipment can be used.
Can a jaw crusher crush granite?
Household - hardly. But jaw-type industrial equipment can easily cope with such a task.
How to repair knives on drums?
If we are talking about the beaters of rotary crushers, it is easier to replace them; if we are talking about the teeth of roller machines, you can try to align them and sharpen them using a metal file.
Is it possible to make a crusher with your own hands?
Yes, but it is not suitable for crushing stones unless you have the skills of a professional lathe, miller and welder. At home, you can make a crusher for soft lumps of substances, branches, food products - video instructions are attached.
